Thread: When to re optimize seating depth ?

Simple answer.... When the group starts opening up.

I've dumbed down my load dev to : powder for speed/barrel time, seating depth for group size. In initial load dev for finding nodes I do not even shoot at targets, just over a chrony. To many false positives looking for nodes while evaluating groups.

Some of my target loads have had significant differences in group size for as little as 0.005 seating depth changes.